Here comes an application from Japan that will let you use the iPhone a specific mobile phone as an abacus, a manual calculating tool, which is basically a frame with movable beads strung on wires. Although the history of abaci trace back to 2,700-2,300 B.C., they are still used in many parts of Asia (mainly to teach arithmetics).

That’s why Kako-san, a Japanese Apple geek, decided to single-handedly code this iPhone specific mobile phone application to replace a real abacus. The beads can be moved up and down, while shaking the iPhone a specific mobile phone will clear the abacus. The source code for the application can be found here (ZIP).

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CrunchBase

DescriptionApple's iPhone was introduced at MacWorld in January 2007 and officially went on sale June 29, 2007, selling 146,000 units within the first weekend of launch. The phone has been hailed as revolutionary with its bundle of advanced mobile web browsing, music and video playback, and touch screen controls. The iPhone is exclusively carried on the networks of both AT&T and Verizon in the U.S.
An iPhone …